<div dir="ltr"><div>LBNL released the Modelica Buildings Library versions 8.0.0 and 7.0.1.<br></div><div><font color="#000000"><br></font></div><div><font color="#000000"><b>Version 8.0.0</b></font></div><div><font color="#000000"><b><br></b></font></div><div><p style="box-sizing:border-box;margin:0px 0px 10px;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:14px">Version 8.0.0  is a major release that contains the first version of the Spawn of EnergyPlus coupling that has been developed by LBNL and NREL in collaboration with Modelon and Objexx Engineering.<font color="#000000"><br></font></p><p style="box-sizing:border-box;margin:0px 0px 10px;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:14px"><font color="#000000">The following major changes have been done in Version 8.0.0</font></p><ul style="box-sizing:border-box;margin-top:0px;margin-bottom:10px;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:14px"><li style="margin-left:15px;box-sizing:border-box"><font color="#000000">The package <a href="https://simulationresearch.lbl.gov/modelica/releases/v8.0.0/help/Buildings_ThermalZones_EnergyPlus.html" target="_blank" style="box-sizing:border-box;background-color:transparent"><code style="box-sizing:border-box;font-family:Menlo,Monaco,Consolas,"Courier New",monospace;font-size:12.6px;padding:2px 4px;background-color:rgb(245,245,245);border-radius:4px;border:0px">Buildings.ThermalZones.EnergyPlus</code></a> contains the first version of the Spawn of EnergyPlus coupling that is being developed at <a href="https://lbl-srg.github.io/soep" target="_blank" style="box-sizing:border-box;background-color:transparent">lbl-srg.github.io/soep</a>. The Spawn coupling allows to model HVAC and controls in Modelica, and graphically connect to EnergyPlus models for thermal zones, schedules EMS actuators and output variables. This allows for example to model HVAC systems, HVAC controls and controls for active facade systems in Modelica, and use the EnergyPlus envelope model to simulate heat transfer through the building envelope, including the heat and light transmission through the windows for the current control signal of the active shade.</font></li><li style="margin-left:15px;box-sizing:border-box"><font color="#000000">The  package </font><a href="https://simulationresearch.lbl.gov/modelica/releases/v8.0.0/help/Buildings_Experimental_DHC.html" style="box-sizing:border-box"><code class="gmail-highlighter-rouge" style="box-sizing:border-box;font-family:Menlo,Monaco,Consolas,"Courier New",monospace;font-size:12.6px;padding:2px 4px;background-color:rgb(245,245,245);border-radius:4px;border:0px"><font color="#0b5394">Buildings.Experimental.DHC</font></code></a><span style="color:rgb(2,46,77)"> contains</span><font color="#000000"> models for district heating and cooling systems that are being developed for the URBANopt District Energy System software.</font></li><li style="margin-left:15px;box-sizing:border-box"><font color="#000000">The new media <a href="https://simulationresearch.lbl.gov/modelica/releases/v8.0.0/help/Buildings_Media_Antifreeze_PropyleneGlycolWater.html" target="_blank" style="box-sizing:border-box;background-color:transparent"><code style="box-sizing:border-box;font-family:Menlo,Monaco,Consolas,"Courier New",monospace;font-size:12.6px;padding:2px 4px;background-color:rgb(245,245,245);border-radius:4px;border:0px">Buildings.Media.Antifreeze.PropyleneGlycolWater</code></a> allows modeling of propylene-glycol water mixtures.</font></li><li style="margin-left:15px;box-sizing:border-box"><font color="#000000">A new cooling coil model <a href="https://simulationresearch.lbl.gov/modelica/releases/v8.0.0/help/Buildings_Fluid_HeatExchangers.html#Buildings.Fluid.HeatExchangers.WetCoilEffectivenessNTU" target="_blank" style="box-sizing:border-box;background-color:transparent"><code style="box-sizing:border-box;font-family:Menlo,Monaco,Consolas,"Courier New",monospace;font-size:12.6px;padding:2px 4px;background-color:rgb(245,245,245);border-radius:4px;border:0px">Buildings.Fluid.HeatExchangers.WetCoilEffectivenessNTU</code></a> has been added. This model is applicable for fully-dry, partially-wet, and fully-wet regimes. In contrast to <a href="https://simulationresearch.lbl.gov/modelica/releases/v8.0.0/help/Buildings_Fluid_HeatExchangers.html#Buildings.Fluid.HeatExchangers.WetCoilCounterFlow" target="_blank" style="box-sizing:border-box;background-color:transparent"><code style="box-sizing:border-box;font-family:Menlo,Monaco,Consolas,"Courier New",monospace;font-size:12.6px;padding:2px 4px;background-color:rgb(245,245,245);border-radius:4px;border:0px">Buildings.Fluid.HeatExchangers.WetCoilCounterFlow</code></a> and to <a href="https://simulationresearch.lbl.gov/modelica/releases/v8.0.0/help/Buildings_Fluid_HeatExchangers.html#Buildings.Fluid.HeatExchangers.WetCoilDiscretized" target="_blank" style="box-sizing:border-box;background-color:transparent"><code style="box-sizing:border-box;font-family:Menlo,Monaco,Consolas,"Courier New",monospace;font-size:12.6px;padding:2px 4px;background-color:rgb(245,245,245);border-radius:4px;border:0px">Buildings.Fluid.HeatExchangers.WetCoilDiscretized</code></a>, this model uses the epsilon-NTU relationship rather than a spatial discretization of the coil. This leads to fewer state variables and generally to a faster simulation.</font></li><li style="margin-left:15px;box-sizing:border-box"><font color="#000000">New simplified door models for bi-directional air exchange between thermal zones are implemented in <a href="https://simulationresearch.lbl.gov/modelica/releases/v8.0.0/help/Buildings_Airflow_Multizone.html" target="_blank" style="box-sizing:border-box;background-color:transparent"><code style="box-sizing:border-box;font-family:Menlo,Monaco,Consolas,"Courier New",monospace;font-size:12.6px;padding:2px 4px;background-color:rgb(245,245,245);border-radius:4px;border:0px">Buildings.Airflow.Multizone</code></a>.</font></li><li style="margin-left:15px;box-sizing:border-box"><font color="#000000">Various other models have been improved or added, in particular for modeling of control sequences using the Control Description Language that has been developed in the OpenBuildingControl project at <a href="https://lbl-srg.github.io/soep" target="_blank" style="box-sizing:border-box;background-color:transparent">obc.lbl.gov</a>.</font></li></ul><p style="box-sizing:border-box;margin:0px 0px 10px;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:14px"><font color="#000000">For a detailed list of changes in version 8.0.0, see the <a href="https://simulationresearch.lbl.gov/modelica/releases/v8.0.0/help/Buildings_UsersGuide_ReleaseNotes.html#Buildings.UsersGuide.ReleaseNotes.Version_8_0_0" target="_blank" style="box-sizing:border-box;background-color:transparent">8.0.0 release notes.</a></font></p><p style="box-sizing:border-box;margin:0px 0px 10px;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:14px"><font color="#000000"><b><br></b></font></p><p style="box-sizing:border-box;margin:0px 0px 10px;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:14px"><font color="#000000"><b>Version 7.0.1</b></font></p><p style="box-sizing:border-box;margin:0px 0px 10px;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:14px"><span style="font-family:Arial,Helvetica,sans-serif;font-size:small">Version 7.0.1 is a bug fix release that is compatible with 7.0.0.</span></p><p style="box-sizing:border-box;margin:0px 0px 10px;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:14px"><span style="color:rgb(0,0,0)">The following changes have been done:</span><br></p><ul style="box-sizing:border-box;margin-top:0px;margin-bottom:10px;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:14px"><li style="margin-left:15px;box-sizing:border-box"><font color="#000000">Corrected memory violation on Windows for weather data file with long header lines.</font></li><li style="margin-left:15px;box-sizing:border-box"><font color="#000000">Corrected various misplaced, or missing, declarations of the "each" statement.</font></li><li style="margin-left:15px;box-sizing:border-box"><font color="#000000">Corrected access to protected classes.</font></li><li style="margin-left:15px;box-sizing:border-box"><font color="#000000">Reformulated replaceable class to avoid access of components that are not in the constraining type.</font></li><li style="margin-left:15px;box-sizing:border-box"><font color="#000000">Added missing parameter declarations for records.</font></li></ul><p style="box-sizing:border-box;margin:0px 0px 10px;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:14px">For a detailed list of changes in version 7.0.1, see the <a href="https://simulationresearch.lbl.gov/modelica/releases/v7.0.1/help/Buildings_UsersGuide_ReleaseNotes.html#Buildings.UsersGuide.ReleaseNotes.Version_7_0_1" target="_blank" style="background-color:transparent;box-sizing:border-box">7.0.1 release notes.<br></a></p><p style="box-sizing:border-box;margin:0px 0px 10px;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:14px"><font color="#000000">Both versions have been </font>tested with Dymola 2021 and 2022, JModelica (revision 14023), and OPTIMICA (revision OCT-stable-r12473_JM-r14295).<br></p><p style="box-sizing:border-box;margin:0px 0px 10px;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:14px">For download, go to <a href="https://simulationresearch.lbl.gov/modelica">simulationresearch.lbl.gov/modelica</a></p></div></div>